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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>正则表达式</title>
</head>
<body>
    <div>name</div>
    <div>age</div>
    <div>sex</div>
    <div>number</div>
    <hr>
    <table>
        <thead>
            <tr>
                <td><input type="text" name="mycode" id="code"></td>
                <td class="tips"></td>
            </tr>
        </thead>
    </table>
    <hr>
    <h1>我是h1</h1>
    <h2>我是h2</h2>
    <h3>我是h3</h3>
    <h5>我是h4</h5>


    <hr>
    <div class="main">+教育是一种资源</div>
    <hr>
    <div class="before">我是后盾人，后盾人good，人人想做后盾人</div>
    <div class="after">我是后盾人，后盾人good，人人想做后盾人</div>




    <script src="./index.js"></script>
</body>
</html>